Language safety is an important part of national security and it concerns the development of countries and regions. With the increasingly close exchanges between Mainland China and Taiwan, there is more and more indepth research on the integration and differences of Chinese between them. However, the existing research seldom systematically analyzes the safety issues across the Taiwan Strait. Focusing on the global issue of “safety”, this paper uses Tagged Chinese Gigaword (second edition) to explore the safety issues of common and respective concerns of the two sides and analyze the characteristics of similarities and differences based on the data of Xinhua News Agency (xin) and Central News Agency (cna) from the 1990s to the beginning of the 21st century. This study can help us better understand the Chinese language use and social phenomenon on both sides of the Taiwan Straits.